{"product_id":"acl-bmw-n54-n55-s55b30-3-0l-standard-size-w-extra-oil-clearance-main-bearing-set-7m1397hx-std","title":"ACL BMW N54\/N55\/S55B30 3.0L Standard Size w\/ Extra Oil Clearance Main Bearing Set | 7M1397HX-STD","description":"\u003cp\u003eThis ACL Main Bearing Set is machined to standard size with added oil clearance, built for the BMW N54, N55, and S55B30 3.0L turbocharged inline-6 engines. Standard size matches the stock, unmachined crankshaft main journal, while the extra oil clearance is intended for performance builds needing additional oil flow to the mains. It fits the BMW 1 Series M, 135i, 335i, 335is, 335xi, 535i, 740i, 740Li, X6 xDrive35i, and Z4 sDrive35i\/35is.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: Main Bearing Set\u003c\/li\u003e\n\u003cli\u003eSize: Standard, w\/ Extra Oil Clearance\u003c\/li\u003e\n\u003cli\u003eEngine Fitment: BMW N54 \/ N55 \/ S55B30 3.0L Inline-6\u003c\/li\u003e\n\u003cli\u003eVehicle Platform: BMW 1 Series M, 135i, 335i, 535i, 740i\/740Li, X6 xDrive35i, Z4 sDrive35i\/35is\u003c\/li\u003e\n\u003cli\u003ePart Number: 7M1397HX-STD\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat size crankshaft does this main bearing set fit?\u003c\/h5\u003e\u003cp\u003eIt is machined to standard size, matching a stock, unmachined N54\/N55\/S55B30 crankshaft main journal.\u003c\/p\u003e\u003ch5\u003eWhat does \"extra oil clearance\" mean on this bearing set?\u003c\/h5\u003e\u003cp\u003eIt is machined with additional internal clearance beyond the standard fit, giving increased oil flow to the main bearings for performance applications.\u003c\/p\u003e\u003ch5\u003eWhich BMW models use this main bearing set?\u003c\/h5\u003e\u003cp\u003eIt fits BMW models built around the N54, N55, and S55B30 3.0L inline-6, including the 1 Series M, 135i, 335i, 535i, 740i\/740Li, X6 xDrive35i, and Z4 sDrive35i\/35is.\u003c\/p\u003e\u003ch5\u003eIs this a full main bearing set or a single bearing?\u003c\/h5\u003e\u003cp\u003eIt is a complete main bearing set for the engine's crankshaft main journals.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What size crankshaft does this main bearing set fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is machined to standard size, matching a stock, unmachined N54\/N55\/S55B30 crankshaft main journal.\"}},{\"@type\":\"Question\",\"name\":\"What does 'extra oil clearance' mean on this bearing set?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is machined with additional internal clearance beyond the standard fit, giving increased oil flow to the main bearings for performance applications.\"}},{\"@type\":\"Question\",\"name\":\"Which BMW models use this main bearing set?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It fits BMW models built around the N54, N55, and S55B30 3.0L inline-6, including the 1 Series M, 135i, 335i, 535i, 740i\/740Li, X6 xDrive35i, and Z4 sDrive35i\/35is.\"}},{\"@type\":\"Question\",\"name\":\"Is this a full main bearing set or a single bearing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is a complete main bearing set for the engine's crankshaft main journals.\"}}]}\u003c\/script\u003e","brand":"ACL","offers":[{"title":"Default Title","offer_id":42631472840752,"sku":"ACL7M1397HX-STD","price":468.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/40122eef7c72ad8aedbf813a6911e74f_9af7a362-8053-44ae-9e3f-82ae5749d6cf.png?v=1765198166","url":"https:\/\/berryperformancesales.com\/products\/acl-bmw-n54-n55-s55b30-3-0l-standard-size-w-extra-oil-clearance-main-bearing-set-7m1397hx-std","provider":"Berry Performance Sales","version":"1.0","type":"link"}